"My collections pay homage to the beauty of nature, which makes us think again about what is really beautiful and precious in life," says Venyx founder and designer Eugenie Niarchos. This sculptural 18-karat gold ring is encrusted with an array of kaleidoscopic sapphires, amethysts and tsavorites and finished with ethereal pearls to mimic the shimmering scales of a rainbowfish. Style it solo.